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Page 81 / 88 Scroll up to view Page 76 - 80
76
D-Link DWR-512 User Manual
Appendix A - Wireless Basics
What is Wireless?
Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires. Wi-Fi uses radio frequency
to connect wirelessly, so you have the freedom to connect computers anywhere in your home or office network.
Why D-Link Wireless
?
D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking products.
D-Link delivers the performance you need at a price you can afford. D-Link has all the products you need to build your network.
How does wireless work?
Wireless works similar to how cordless phone work, through radio signals to transmit data from one point A to point B. But wireless
technology has restrictions as to how you can access the network. You must be within the wireless network range area to be able to
connect your computer. There are two different types of wireless networks Wireless Local Area Network (WLAN), and Wireless Personal
Area Network (WPAN).
Wireless Local Area Network (WLAN)
In a wireless local area network, a device called an Access Point (AP) connects computers to the network. The access point has a small
antenna attached to it, which allows it to transmit data back and forth over radio signals. With an indoor access point as seen in the picture,
the signal can travel up to 300 feet. With an outdoor access point the signal can reach out up to 30 miles to serve places like manufacturing
plants, industrial locations, college and high school campuses, airports, golf courses, and many other outdoor venues.
Wireless Personal Area Network (WPAN)
Bluetooth is the industry standard wireless technology used for WPAN. Bluetooth devices in WPAN operate in a range up to 30 feet
away.
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D-Link DWR-512 User Manual
Appendix A - Wireless Basics
Compared to WLAN the speed and wireless operation range are both less than WLAN, but in return it doesn’t use nearly as much power
which makes it ideal for personal devices, such as mobile phones, PDAs, headphones, laptops, speakers, and other devices that operate
on batteries.
Who uses wireless?
Wireless technology as become so popular in recent years that almost everyone is using it, whether it’s for home, office, business, D-Link
has a wireless solution for it.
Home
• Gives everyone at home broadband access
• Surf the web, check e-mail, instant message, and etc
• Gets rid of the cables around the house
• Simple and easy to use
Small Office and Home Office
• Stay on top of everything at home as you would at office
• Remotely access your office network from home
• Share Internet connection and printer with multiple computers
• No need to dedicate office space
Page 83 / 88
78
D-Link DWR-512 User Manual
Appendix A - Wireless Basics
Where is wireless used?
Wireless technology is expanding everywhere not just at home or office. People like the freedom of mobility and it’s becoming so popular
that more and more public facilities now provide wireless access to attract people. The wireless connection in public places is usually
called “hotspots”.
Using a D-Link Cardbus Adapter with your laptop, you can access the hotspot to connect to Internet from remote locations like Airports,
Hotels, Coffee Shops, Libraries, Restaurants, and Convention Centers.
Wireless network is easy to setup, but if you’re installing it for the first time it could be quite a task not knowing where to start. That’s why
we’ve put together a few setup steps and tips to help you through the process of setting up a wireless network.
Tips
Here are a few things to keep in mind, when you install a wireless network.
Centralize your Router or Access Point
Make sure you place the router/access point in a centralized location within your network for the best performance. Try to place the router/
access point as high as possible in the room, so the signal gets dispersed throughout your home. If you have a two-story home, you may
need a repeater to boost the signal to extend the range.
Eliminate Interference
Place home appliances such as cordless telephones, microwaves, and televisions as far away as possible from the router/access point.
This would significantly reduce any interference that the appliances might cause since they operate on same frequency.
Security
Don’t let you next-door neighbors or intruders connect to your wireless network. Secure your wireless network by turning on the WPA or
WEP security feature on the router. Refer to product manual for detail information on how to set it up.
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79
D-Link DWR-512 User Manual
Appendix A - Wireless Basics
There are basically two modes of networking:
• •
Infrastructure
– All wireless clients will connect to an access point or wireless router.
• •
Ad-Hoc
– Directly connecting to another computer, for peer-to-peer communication, using wireless network
adapters on each computer, such as two or more WNA-2330 wireless network Cardbus adapters.
An Infrastructure network contains an Access Point or wireless router. All the wireless devices, or clients, will connect to the wireless
router or access point.
An Ad-Hoc network contains only clients, such as laptops with wireless cardbus adapters. All the adapters must be in Ad-Hoc mode to
communicate.
Wireless Modes
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80
D-Link DWR-512 User Manual
Appendix B - Networking Basics
Networking Basics
Check your IP address
After you install your new D-Link adapter, by default, the TCP/IP settings should be set to obtain an IP address from a DHCP server (i.e.
wireless router) automatically. To verify your IP address, please follow the steps below.
Click on
Start
>
Run
. In the run box type
cmd
and click
OK.
(Windows
®
Vista
™
users type
cmd
in the
Start Search
box.)
At the prompt, type
ipconfig
and press
Enter
.
This will display the IP address, subnet mask, and the
default gateway of your adapter.
If the address is 0.0.0.0, check your adapter installation, security settings, and the settings on your router. Some firewall software programs
may block a DHCP request on newly installed adapters.

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